Eliminate CLang compiler warning -Wunused local functions

Dear abv,
Please, review the branch CR24170

I have reverted change in Visual3d_View.cxx since the code is suspicious and requires additional analysis to be corrected. Apart of this, no remarks, please test

Dear Commenter 1,

Branch CR24170 was compiled on Linux platform.

There is compilation error:
http://jenkins-test-02.nnov.opencascade.com:8080/user/mnt/my-views/view/CR24170/job/mnt-CR24170-master_build_occt_linux/1/parsed_console/?
../../../../inc/IntStart_SearchOnBoundaries_2.gxx:72: error: ‘BoundedArc’ was not declared in this scope

I suggest gxx files IntStart_SearchOnBoundaries_1.gxx and IntStart_SearchOnBoundaries_2.gxx should be eliminated, with their code put to main IntStart_SearchOnBoundaries.gxx

Dear abv,
Please, review the changes in branch CR24170.

No remarks, please test

Dear Commenter 1,

Branch CR24170 (and products from GIT master) was compiled on Linux and Windows platforms and tested.
[revision removed]

Number of compiler warnings:

occt component :
Linux: 779 (790 on master)
Windows: 392 (392 on master)

products component :
Linux: 190 (190 on master)
Windows: 287 (287 on master)

Regressions:
No regressions

Improvements:
No improvements

Testing cases:
Not needed

Testing on Linux:
Total MEMORY difference: 365530240 / 366361780
Total CPU difference: 43597.40000000098 / 44238.54000000111

Testing on Windows:
Total MEMORY difference: 427313660 / 429125892
Total CPU difference: 41323.3125 / 39406.125

There are not differences in images found by testdiff.